Wireless charging mobile power supply

Abstract

The invention discloses a wireless charging mobile power supply, which comprises a first shell, a second shell, a heat dissipation shell, a battery and a coil, and is characterized in that the first shell and the second shell are connected to form an accommodating space, and the battery is arranged in the accommodating space; the coil is electrically connected with the battery and is used for wirelessly charging external equipment; the coil abuts against the heat dissipation shell, and the heat dissipation shell is used for conducting heat generated by the coil and the battery to the outside. The wireless charging mobile power supply disclosed by the invention is provided with the metal heat dissipation shell, so that when a user uses the wireless charging mobile power supply, heat generated by a coil in the wireless charging mobile power supply can be conducted out in time, and the problems of power reduction, user scalding, spontaneous combustion and the like caused by over-high temperature of the wireless charging mobile power supply are prevented; the heat dissipation shell provides good heat dissipation performance for the wireless charging mobile power supply, better use experience is provided for a user, and the safety of the wireless charging mobile power supply is improved.

Description

Technical Field

[0001] The present invention relates to the field of mobile power supplies, and in particular to a wireless charging mobile power supply. Background Art

[0002] Mobile power supplies are indispensable items for people in modern life. Mobile power supplies can charge mobile phones, tablets, headphones and other devices. However, when using mobile power supplies to charge devices, people have to face the trouble of messy data cables caused by different interfaces. Power banks with wireless charging function solve this problem. However, wireless charging mobile power supplies will generate a lot of heat when charging devices. If the heat is not dissipated in time, the charging power of the mobile power supply will be reduced, the user will be scalded, and there is even a risk of fire. To this end, the present invention provides a wireless charging mobile power supply, which can effectively solve the above problems. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the technical solution adopted by the present invention to solve the technical problems is:

[0004] A wireless charging mobile power source comprises a first shell, a second shell, a heat dissipation shell, a battery and a coil, wherein the first shell is connected to the second shell to form a storage space, and the battery is arranged in the storage space; the heat dissipation shell is connected to the first shell or the second shell, and the coil is electrically connected to the battery for wirelessly charging an external device; the coil is abutted against the heat dissipation shell, and the heat dissipation shell is used to conduct the heat generated by the coil to the outside.

[0005] Furthermore, the first shell and the second shell are detachably connected.

[0006] Furthermore, the heat dissipation housing can be detachably covered on the first housing.

[0007] Furthermore, a first circular boss for supporting the coil is provided on the outer side of the heat dissipation housing, a first axial hole is provided at the center of the first boss, a second axial hole is provided at the center of the coil, the coil is arranged on the first boss, and the first axial hole corresponds to the second axial hole in position.

[0008] Furthermore, the wireless charging mobile power supply also includes an annular magnet, which is used to attract external devices; a second annular groove is provided on the heat dissipation shell around the first boss, and the magnet is configured in the second annular groove.

[0009] Furthermore, an annular boss is provided on the inner side of the heat dissipation shell at a position corresponding to the second annular groove; a first annular groove matching the size of the annular boss is provided on the outer side of the first shell, and when the heat dissipation shell is installed on the first shell, the annular boss is engaged in the first annular groove.

[0010] Furthermore, a first hollow convex shaft is arranged at the center position of the first annular groove, and the first axial hole of the heat dissipation housing and the second axial hole of the coil are sleeved on the first convex shaft.

[0011] Furthermore, the wireless charging mobile power supply also includes a cover plate that matches the size of the second annular groove, a second convex shaft is provided in the center of the inner side of the cover plate, a protruding first clamping block is provided on one side of the second convex shaft, the second convex shaft passes through the first axial hole, the second axial hole and is inserted into the hollow first convex shaft, the first clamping block is engaged with the inner side wall of the first shell, so that the cover plate covers the coil and is installed in the second annular groove.

[0012] Furthermore, a plurality of first connecting members are provided on the inner edge of the cover plate, and a second clamping block is provided on one side of the first connecting member; a second connecting hole is provided in the second annular groove, and a first connecting hole corresponding to the position of the second connecting hole is provided in the first annular groove, the first connecting member is inserted into the second connecting hole and the first connecting hole, and the second clamping block is engaged with the inner wall of the first shell.

[0013] Furthermore, an extension end is provided on the magnet, and a protrusion is provided on the extension end; a first through hole is provided in the first annular groove, a second through hole is provided in the second annular groove at a position corresponding to the first through hole, and a slot matching the protrusion is provided on the inner side of the first shell; after the extension end passes through the second through hole and the first through hole, the protrusion is engaged in the slot so that the magnet is installed in the second annular groove.

[0014] Furthermore, the wireless charging mobile power supply also includes a control circuit board, which is arranged in the accommodating space and electrically connected to the battery.

[0015] Furthermore, a first wire hole is provided in the first annular groove, a second wire hole is provided in the second annular groove at a position corresponding to the first wire hole, and the coil is electrically connected to the control circuit board through the first wire hole and the second wire hole.

[0016] Furthermore, an indicator light is arranged on the control circuit board; and a slot is arranged at a position of the second shell corresponding to the indicator light.

[0017] Furthermore, a power interface is also provided on the control circuit board.

[0018] Furthermore, a power button is provided on the second shell, and the power button is electrically connected to the control circuit board.

[0019] Furthermore, a second connecting member is provided on the inner side of the second shell, and a third clamping block is provided at one end of the second connecting member; a first slot is provided on the first shell, and a third connecting hole is provided in the first slot; the second connecting member is inserted into the first slot, and the third clamping block is engaged in the third connecting hole to connect the first shell with the second shell; the third clamping block leaves the third connecting hole to detach the second connecting member from the first slot.

[0020] Furthermore, a third connecting member is provided on the heat dissipation shell, and a fourth connecting hole is provided on the third connecting member; a second slot is provided on the first shell, and a fourth card block is provided in the second slot, the third connecting member is inserted into the second slot, and the fourth card block is engaged in the fourth connecting hole to connect the heat dissipation shell with the first shell; the fourth card block leaves the fourth connecting hole to enable the third connecting member to be detached from the second slot.

[0021] Furthermore, a plurality of heat dissipation grooves are arranged on the surface of the heat dissipation housing.

[0022] Furthermore, the wireless charging mobile power supply also includes a heat insulation board, which is arranged on both sides of the battery; the material of the heat insulation board is aerogel.

[0023] Furthermore, a plurality of strip-shaped protrusions are arranged on the surface of the cover plate.

[0024] The beneficial effect of the present invention is that the wireless charging mobile power supply disclosed by the present invention is equipped with a metal heat dissipation shell, which can timely dissipate the heat generated by the coil in the wireless charging mobile power supply when the user uses the wireless charging mobile power supply, thereby preventing the wireless charging mobile power supply from reducing power, scalding the user, spontaneous combustion, and other problems due to excessive temperature. The heat dissipation shell provides good heat dissipation performance for the wireless charging mobile power supply, provides users with a better use experience, and improves the safety of the wireless charging mobile power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 It is an exploded schematic diagram of the present invention; a three-dimensional structural schematic diagram of an embodiment;

[0028] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0029] Figure 3 yes Figure 1 The enlarged view of point B in the middle;

[0030] Figure 4 It is an exploded schematic diagram of another angle of the present invention;

[0031] Figure 5 yes Figure 4 Enlarged view of point C in the middle;

[0032] Figure 6 yes Figure 4 The enlarged view of point D in the middle;

[0033] Figure 7 is a schematic diagram of the three-dimensional structure of the first shell of the present invention;

[0034] Figure 8 yes Figure 7 The enlarged view of F in the middle;

[0035] Fig. 9 It is a three-dimensional structural schematic diagram of the present invention;

[0036] Fig.10 It is a three-dimensional structural schematic diagram of the present invention from another angle;

[0037] Fig.11 It is another perspective exploded schematic diagram of the present invention;

[0038] The accompanying drawings are marked as follows: wireless charging mobile power supply 90; first shell 10; second shell 20; heat dissipation shell 30; battery 40; coil 50; first protrusion 11a; second shaft hole 51; first annular groove 11; first boss 31; first shaft hole 31a; second annular groove 32; annular boss 33; magnet 60; cover plate 70; second protrusion 71; first clamping block 72; first connecting member 73; second clamping block 74; first connecting hole 11b; second connecting hole 32a; protrusion 61; second through hole 32b; slot 12; control circuit board 80; first wire hole 11c; indicator light 81; power interface 82; power button 21; second connecting member 22; third clamping block 23; first slot 13; third connecting hole 13a; third connecting member 34; fourth connecting hole 35; second slot 14; fourth clamping block 15; heat dissipation groove 36; heat insulation board 91; strip protrusion 75; slot 24; first through hole 11d. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Reference Figures 1 to 11 The present invention provides a wireless charging mobile power supply 90, including a first shell 10, a second shell 20, a heat dissipation shell 30, a battery 40 and a coil 50. The first shell 10 is connected to the second shell 20 to form a storage space, and the battery 40 is arranged in the storage space; the heat dissipation shell 30 is connected to the first shell 10 or the second shell 20, and a part of the heat dissipation shell 30 is arranged at the outermost side of the wireless charging mobile power supply 90. The coil 50 is electrically connected to the battery 40 for wireless charging of an external device; the coil 50 is in contact with the heat dissipation shell 30, and the heat dissipation shell 30 is used to conduct the heat generated by the coil 50 and the battery 40 to the outside.

[0041] The wireless charging mobile power disclosed in the present invention is equipped with a metal heat dissipation shell, which can promptly dissipate the heat generated by the coil and the battery in the wireless charging mobile power when the user uses the wireless charging mobile power, thereby preventing the wireless charging mobile power from reducing power, scalding the user, spontaneous combustion, and other problems due to excessive temperature. The heat dissipation shell provides good heat dissipation performance for the wireless charging mobile power, provides users with a better use experience, and improves the safety of the wireless charging mobile power.

[0042] It can be understood that the battery is arranged inside the wireless charging mobile power supply and abuts against the first shell and the second shell, the heat dissipation shell is connected to the first shell or the second shell, and part of the heat dissipation shell is connected to the coil. When the wireless charging mobile power supply is working, the heat generated by the coil and the battery will be conducted to the heat dissipation shell, and the heat dissipation shell will conduct the heat to the external environment; the heat dissipation shell can be made of heat dissipation materials such as aluminum, iron, and silver.

[0043] Furthermore, the first shell 10 and the second shell 20 are detachably connected.

[0044] It can be understood that the first shell and the second shell are detachably connected, and do not require traditional fasteners such as bolts and rivets, which facilitates quick assembly and disassembly, simplifies the production assembly process, and improves efficiency.

[0045] Furthermore, the heat dissipation housing 30 can be detachably covered on the first housing 10 .

[0046] It can be understood that the heat dissipation housing and the first housing are detachably connected, and do not require traditional fasteners such as bolts and rivets, which facilitates quick assembly and disassembly, simplifies the production assembly process, and improves efficiency.

[0047] Furthermore, a first circular boss 31 for supporting the coil 50 is provided on the outer side of the heat dissipation housing 30, a first axial hole 31a is provided in the center of the first boss 31, and a second axial hole 51 is provided in the center of the coil 50. The coil 50 is arranged on the first boss 31, and the first axial hole 31a corresponds to the second axial hole 51 in position.

[0048] It can be understood that the coil is arranged on the first boss to connect the coil to the heat dissipation shell, so that the heat generated by the coil when working is conducted to the heat dissipation shell; the second axial hole is arranged in the center of the coil and the first axial hole is arranged in the center of the first boss to facilitate the fixing of the coil and the heat dissipation shell on the shaft body, which is convenient for installation and has a simple and practical design.

[0049] Furthermore, the wireless charging mobile power supply 90 also includes an annular magnet 60 , which is used to adsorb external devices; a second annular groove 32 is provided on the heat dissipation housing 30 around the first boss 31 , and the magnet 60 is configured in the second annular groove 32 .

[0050] It can be understood that the wireless charging mobile power supply is provided with a magnet, so that the wireless charging mobile power supply has a magnetic suction function, which can adsorb external charging devices and provide users with a richer use experience.

[0051] Furthermore, an annular boss 33 is provided on the inner side of the heat dissipation shell 30 at a position corresponding to the second annular groove 32; a first annular groove 11 matching the size of the annular boss 33 is provided on the outer side of the first shell 10, and when the heat dissipation shell 30 is installed on the first shell 10, the annular boss 33 is engaged in the first annular groove 11.

[0052] It can be understood that the shape and size of the annular boss match the size of the first annular groove. When the heat dissipation shell is installed on the first shell, the annular boss can be engaged in the first annular groove to enhance the stability of the fixation between the heat dissipation shell and the first shell.

[0053] Furthermore, a hollow first protruding shaft 11 a is provided at the center of the first annular groove 11 , and the first axial hole 31 a of the heat dissipation housing 30 and the second axial hole 51 of the coil 50 are sleeved on the first protruding shaft 11 a .

[0054] It can be understood that the second axial hole of the coil is sleeved on the first convex shaft, and the first axial hole of the heat dissipation housing is sleeved on the first convex shaft, so that the coil and the heat dissipation housing can be fixed, and the design is simple and practical.

[0055] Furthermore, the wireless charging mobile power supply 90 also includes a cover plate 70 that matches the size of the second annular groove 32. A second protruding shaft 71 is arranged at the center of the inner side of the cover plate 70. A protruding first clamping block 72 is arranged on one side of the second protruding shaft 71. The second protruding shaft 71 passes through the first axial hole 31a and the second axial hole 51 and is inserted into the hollow first protruding shaft 11a. The first clamping block 72 is engaged with the inner side wall of the first shell 10 so that the cover plate 70 covers the coil 50 and is installed in the second annular groove 32.

[0056] It can be understood that the second protrusion in the center of the cover can be inserted into the hollow first protrusion, and the first block set on the second protrusion can be engaged on the inner wall of the first shell to connect the cover to the first shell; the second protrusion is elastic, which is convenient for users to install and remove the cover.

[0057] Furthermore, a plurality of first connecting members 73 are provided on the inner edge of the cover plate 70, and a second clamping block 74 is provided on one side of the first connecting member 73; a second connecting hole 32a is provided in the second annular groove 32, and a first connecting hole 11b corresponding to the position of the second connecting hole 32a is provided in the first annular groove 11; the first connecting member 73 is inserted into the second connecting hole 32a and the first connecting hole 11b, and the second clamping block 74 is engaged with the inner wall of the first shell 10.

[0058] It can be understood that the positions of several first connecting members correspond one by one to the positions of several second connecting holes. After the first connecting member is inserted into the second connecting hole, the second clamping block on the first connecting member can be engaged with the inner wall of the first shell to further fix the cover. The first connecting member is elastic to facilitate quick disassembly and installation of the cover.

[0059] Furthermore, an extension end is provided on the magnet 60, and a protrusion 61 is provided on the extension end; a first through hole 11d is provided in the first annular groove 11, and a second through hole 32b is provided in the second annular groove 32 at a position corresponding to the first through hole 11d, and a slot 12 matching the protrusion 61 is provided on the inner side of the first shell 10. After the extension end passes through the second through hole 32b and the first through hole 11d, the protrusion 61 is engaged in the slot 12 so that the magnet 60 is installed in the second annular groove 32.

[0060] It can be understood that after the extended end of the magnet passes through the first through hole and the second through hole, the protrusion on the extended end can be engaged in the groove in the first shell to fix the magnet in the second annular groove. The design is simple and practical, and it is convenient for quick assembly and disassembly.

[0061] Furthermore, the wireless charging mobile power supply 90 further includes a control circuit board 80 , which is disposed in the accommodation space and is electrically connected to the battery 40 .

[0062] It can be understood that the control circuit board can control the power on and off of the wireless charging mobile power supply, and can also convert the current into alternating current and conduct it to the coil, so that the coil generates a magnetic field.

[0063] Furthermore, a first wire hole 11c is provided in the first annular groove 11, and a second wire hole 32c is provided in the second annular groove 32 at a position corresponding to the first wire hole 11c. The coil 50 is electrically connected to the control circuit board 80 through the first wire hole 11c and the second wire hole 32c.

[0064] It can be understood that one end of the coil is connected to the control circuit board through the first wire hole and the second wire hole, which makes rational use of space and has a simple and practical design.

[0065] Furthermore, an indicator light 81 is disposed on the control circuit board 80 ; and a slot 24 is disposed at a position of the second housing 20 corresponding to the indicator light 81 .

[0066] It can be understood that there are several indicator lights arranged in sequence. When the remaining battery power is more, the number of indicator lights that light up is more, and when the remaining battery power is less, the number of indicator lights that light up is less.

[0067] In some embodiments, the indicator light may be one, and the color of the indicator light may change depending on the battery charge.

[0068] Users can see the indicator light through the slot to know the remaining battery power, improving the user experience.

[0069] Furthermore, a power interface 82 is also provided on the control circuit board 80 .

[0070] It can be understood that the user can connect a power cord to the power interface to charge the wireless charging mobile power supply. The power interface can be but is not limited to commonly used interfaces such as USB, Type-C, etc.

[0071] Furthermore, a power button 21 is provided on the second housing 20 , and the power button 21 is electrically connected to the control circuit board 80 .

[0072] It can be understood that the user can control the wireless charging mobile power to start charging or stop charging by pressing the power button, which is convenient for the user.

[0073] Furthermore, a second connecting member 22 is provided on the inner side of the second shell 20, and a third clamping block 23 is provided at one end of the second connecting member 22; a first slot 13 is provided on the first shell 10, and a third connecting hole 13a is provided in the first slot 13; the second connecting member 22 is inserted into the first slot 13, and the third clamping block 23 is engaged in the third connecting hole 13a to connect the first shell 10 with the second shell 20; the third clamping block 23 leaves the third connecting hole 13a to detach the second connecting member 22 from the first slot 13.

[0074] It can be understood that there are several second connecting members and several first slots, and the positions of the several second connecting members correspond one by one to the positions of the several first slots. After the second connecting member is inserted into the first slot, the third card block provided on the second connecting member is engaged in the third connecting hole in the first slot to lock the first shell on the second shell; the second connecting member is elastic, and after the third card block is moved out of the third connecting hole, the second connecting member is pulled out of the first slot to separate the first shell from the second shell.

[0075] Furthermore, a third connecting member 34 is provided on the heat dissipation shell 30, and a fourth connecting hole 35 is provided on the third connecting member 34; a second slot 14 is provided on the first shell 10, and a fourth card block 15 is provided in the second slot 14, the third connecting member 34 is inserted into the second slot 14, and the fourth card block 15 is engaged in the fourth connecting hole 35 to connect the heat dissipation shell 30 with the first shell 10; the fourth card block 15 leaves the fourth connecting hole 35 to detach the third connecting member 34 from the second slot 14.

[0076] It can be understood that there are several third connecting members and several second slots, and the positions of the several third connecting members correspond one by one to the positions of the several second slots. After the third connecting member is inserted into the second slot, the fourth card block in the second slot is engaged with the fourth connecting hole on the third connecting member, so that the heat dissipation shell is locked on the first shell; the fourth card block is removed from the fourth connecting hole, and the third connecting member is pulled out of the second slot to separate the heat dissipation shell from the first shell.

[0077] Furthermore, a plurality of heat dissipation slots 36 are disposed on the surface of the heat dissipation housing 30 .

[0078] It can be understood that the heat dissipation groove can increase the heat dissipation area of ​​the heat dissipation shell and further improve the heat dissipation performance of the heat dissipation shell. At the same time, when the external device is placed on the wireless charging mobile power bank for charging, the heat dissipation groove can reduce the contact area between the heat dissipation shell and the external device, reduce heat accumulation, and improve heat dissipation performance.

[0079] Furthermore, the wireless charging mobile power supply 90 further includes a heat insulation board 91, which is arranged on both sides of the battery 40. The material of the heat insulation board 91 can be aerogel.

[0080] It can be understood that there are two heat insulation plates. When the wireless charging mobile power supply is working, the battery will generate heat. The heat insulation plates are attached to both sides of the battery and cover the main surface of the battery, which can effectively block the heat generated by the battery from being transferred to the external shell, providing users with a better user experience. At the same time, the heat insulation plates can also act as a buffer to protect the battery.

[0081] Furthermore, a plurality of strip-shaped protrusions 75 are provided on the surface of the cover plate 70 .

[0082] It can be understood that the plurality of strip-shaped protrusions on the surface of the cover plate can increase the surface area of ​​the cover plate surface, thereby increasing the heat dissipation area and further enhancing the heat dissipation performance.

[0083] As described above, one or more implementation methods are provided in combination with specific contents, and the specific implementation of the present invention is not limited to these descriptions. Any similarity or similarity with the method, structure, etc. of the present invention, or any technical deduction or replacement based on the concept of the present invention, shall be regarded as the protection scope of the present invention.

Claims

1. A wireless charging mobile power source (90), characterized in that: The invention comprises a first shell (10), a second shell (20), a heat dissipation shell (30), a battery (40) and a coil (50), wherein the first shell (10) and the second shell (20) are connected to form a storage space, and the battery (40) is arranged in the storage space; the heat dissipation shell (30) is connected to the first shell (10) or the second shell (20), and the coil (50) is electrically connected to the battery (40) for wireless charging of an external device; the coil (50) is in contact with the heat dissipation shell (30), and the heat dissipation shell (30) is used to conduct heat generated by the coil (50) to the outside.

2. The wireless charging mobile power supply (90) according to claim 1, characterized in that: The first shell (10) and the second shell (20) are detachably connected; a second connecting member (22) is provided on the inner side of the second shell (20), and a third clamping block (23) is provided at one end of the second connecting member (22); a first slot (13) is provided on the first shell (10), and a third connecting hole (13a) is provided in the first slot (13); the second connecting member (22) is inserted into the first slot (13), and the third clamping block (23) is clamped in the third connecting hole (13a) so that the first shell (10) and the second shell (20) are connected; the third clamping block (23) leaves the third connecting hole (13a) so that the second connecting member (22) is detached from the first slot (13).

3. The wireless charging mobile power supply (90) according to claim 1, characterized in that: The heat dissipation housing (30) is detachably covered on the first housing (10); a third connecting piece (34) is provided on the heat dissipation housing (30), and a fourth connecting hole (35) is provided on the third connecting piece (34); a second slot (14) is provided on the first housing (10), and a fourth clamping block (15) is provided in the second slot (14); the third connecting piece (34) is inserted into the second slot (14), and the fourth clamping block (15) is clamped in the fourth connecting hole (35) so that the heat dissipation housing (30) is connected to the first housing (10); the fourth clamping block (15) leaves the fourth connecting hole (35) so that the third connecting piece (34) is detached from the second slot (14).

4. The wireless charging mobile power supply (90) according to claim 1, characterized in that: The outer side of the heat dissipation shell (30) is provided with a circular first boss (31) for carrying the coil (50), the center of the first boss (31) is provided with a first axial hole (31a), the center of the coil (50) is provided with a second axial hole (51), the coil (50) is arranged on the first boss (31), and the first axial hole (31a) corresponds to the position of the second axial hole (51); the wireless charging mobile power supply (90) also includes an annular magnet (60), and the magnet (60) is used to adsorb external equipment; the heat dissipation shell (30) is provided with a second annular groove (32) surrounding the first boss (31), and the magnet (60) is arranged in the second annular groove (32).

5. The wireless charging mobile power source (90) according to claim 4, characterized in that: An annular boss (33) is arranged on the inner side of the heat dissipation shell (30) at a position corresponding to the second annular groove (32); a first annular groove (11) matching the size of the annular boss (33) is arranged on the outer side of the first shell (10); when the heat dissipation shell (30) is installed on the first shell (10), the annular boss (33) is engaged in the first annular groove (11); a hollow first convex shaft (11a) is arranged at the center position of the first annular groove (11); the first axial hole (31a) of the heat dissipation shell (30) and the second axial hole (51) of the coil (50) are sleeved on the first convex shaft (11a).

6. The wireless charging mobile power source (90) according to claim 7, characterized in that: The wireless charging mobile power supply (90) further comprises a cover plate (70) whose size matches that of the second annular groove (32); a second convex shaft (71) is arranged at the center of the inner side of the cover plate (70); a protruding first clamping block (72) is arranged on one side of the second convex shaft (71); the second convex shaft (71) passes through the first shaft hole (31a) and the second shaft hole (51) and is inserted into the hollow first convex shaft (11a); the first clamping block (72) is clamped on the inner side wall of the first shell (10) so that the cover plate (70) covers the coil (50) and is installed in the second annular groove (32); and a plurality of strip-shaped protrusions (75) are arranged on the surface of the cover plate (70).

7. The wireless charging mobile power supply (90) according to claim 8, characterized in that: A plurality of first connecting members (73) are provided on the inner edge of the cover plate (70), and a second clamping block (74) is provided on one side of the first connecting member (73); a second connecting hole (32a) is provided in the second annular groove (32), and a first connecting hole (11b) corresponding to the position of the second connecting hole (32a) is provided in the first annular groove (11); the first connecting member (73) is inserted into the second connecting hole (32a) and the first connecting hole (11b), and the second clamping block (74) is engaged with the inner wall of the first shell (10).

8. The wireless charging mobile power source (90) according to claim 6, characterized in that: The magnet (60) is provided with an extension end, and the extension end is provided with a protrusion (61); the first annular groove (11) is provided with a first through hole (11d), the second annular groove (32) is provided with a second through hole (32b) at a position corresponding to the first through hole (11d), and the inner side of the first shell (10) is provided with a slot (12) matching the protrusion (61); after the extension end passes through the second through hole (32b) and the first through hole (11d), the protrusion (61) is engaged in the slot (12) so that the magnet (60) is installed in the second annular groove (32).

9. The wireless charging mobile power source (90) according to claim 6, characterized in that: The wireless charging mobile power supply (90) further comprises a control circuit board (80), the control circuit board (80) being arranged in the accommodation space and being electrically connected to the battery (40); a first wire hole (11c) being arranged in the first annular groove (11), a second wire hole (32c) being arranged in the second annular groove (32) at a position corresponding to the first wire hole (11c), the coil (50) being electrically connected to the control circuit board (80) through the first wire hole (11c) and the second wire hole (32c); an indicator light (81) being arranged on the control circuit board (80); a slot (24) being arranged at a position corresponding to the indicator light (81) on the second shell (20); a power interface (82) being also arranged on the control circuit board (80); a power button (21) being arranged on the second shell (20), the power button (21) being electrically connected to the control circuit board (80).

10. The wireless charging mobile power source (90) according to claim 1, characterized in that: A plurality of heat dissipation grooves (36) are arranged on the surface of the heat dissipation housing (30); the wireless charging mobile power source (90) further comprises a heat insulation plate (91), which is arranged on both sides of the battery (40); and the material of the heat insulation plate (91) is aerogel.

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